IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Bypass UAC via Sdcltedit
Identifies User Account Control (UAC) bypass via sdclt.exe. Attackers bypass UAC to stealthily execute code with elevated permissions.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
- logs-windows.*
Severity: high
Risk score: 73
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Privilege Escalation
Version: 1
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
/* add winlogbeat-* when process.code_signature.* fields are populated */
/* still needs testing, applicable binary was not available on test machine */
sequence with maxspan=1m
[process where host.os.type == "windows" and event.type == "start" and process.name : "sdclt.exe" and
/* uncomment once in winlogbeat */
/* process.code_signature.subject_name == "Microsoft Corporation" and process.code_signature.trusted == true and */
process.args : "/kickoffelev"
] by process.entity_id
[process where host.os.type == "windows" and event.type == "start" and process.parent.name : "sdclt.exe" and
not (process.executable : "C:\\Windows\\System32\\sdclt.exe" or
process.executable : "C:\\Windows\\System32\\control.exe" or
process.executable : "C:\\Windows\\SysWOW64\\sdclt.exe" or
process.executable : "C:\\Windows\\SysWOW64\\control.exe")
] by process.parent.entity_id
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
-
Technique:
- Name: Abuse Elevation Control Mechanism
- ID: T1548
- Reference URL: https://attack.mitre.org/techniques/T1548/
-
Sub-technique:
- Name: Bypass User Account Control
- ID: T1548.002
- Reference URL: https://attack.mitre.org/techniques/T1548/002/